GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 5 of 5
  1. #1

    Default 95 K1500 4l60E with no first gear

    I just purchased 95 K1500 and, along with someone doing away with the emissions on the engine, I noticed when taking off the transmission starts in 2nd gear. ODB1 and No codes. I tested the A solenoid while driving (someone else was driving while I put a ground on the light green wire) and the transmission will shift into 1st gear. I'm thinking the computer being bad. Before I purchase another, does anyone have other suggestions?

  2. #2
    Jr. Mechanic
    Join Date
    Apr 2013
    Location
    East Central Iowa
    Posts
    88

    Default

    Sounds like trans. pricing time. Although I did have a '94 full size bronco do this same thing. Solenoid pack and a ecm fixed that one.

  3. #3

    Default

    it appears the transmission is working fine, just not getting the signal it needs to activate 1-2 solenoid.

  4. #4
    Master Mechanic BurbanMan's Avatar
    Join Date
    Jul 2013
    Location
    Dolores, CO
    Posts
    796

    Default

    Trace that wire to the ECM and see if the ECM is putting out signal
    Chuckie!!!


  5. #5

    Default

    With the engine running and transmission selector in over-drive, sitting in the driveway brakes applied, there is a 2.3vdc ground signal on E9 at the PCM. If I apply a good ground to that terminal the trans engages 1st gear. I'm just not sure if there is something else wrong that would prevent the PCM from providing a good ground signal to the solenoid.

    - - - Updated - - -

    It turns out the 1-2 solenoid was bad causing the trans to not have 1st gear. I put another solenoid in and everything works great. I was mistaken by thinking 4th gear was working, guess it was the converter lock-up making the change in rpms. Thanks for the advise.

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •